Mine Monitoring

SWP conducts verification monitoring of the environmental monitoring done by Eagle Mine as required by its permits. At this time, environmental monitoring is required by two State of Michigan permits (a Part 632 Nonferrous Metallic Mineral Mining Permit and a Groundwater Discharge Permit). CEMP verification monitoring categories include: groundwater monitoring, surface water monitoring, and facilities (water treatment plant, TDRSA) monitoring.

2) Additional monitoring

This is environmental monitoring done by SWP over and above the monitoring that Eagle Mine is required to do under its permits. Additional monitoring categories currently include but are not limited to: air quality and weather monitoring (Powell Township and Eagle Mine Air Stations), transportation route sampling (air and surface water), as well as berry/traditional food monitoring as requested by the Keweenaw Bay Indian Community.

The Scorecard Rating System Explained:

The red light used in the rating indicates potential harm to the environment/potential permit violation.

An orange light indicates an area of concern and/or potential impact to the environment

A yellow light indicates an area that is being tracked but currently poses no threat to the environment.

A green light indicates no known risks to the environment.

A white or blank light indicates an area that was not rated.

These “lights” also serve as links (via a click and a pop-up box) to data summary tables, an explanation of the reason for a “tracking” or “area of concern color rating”, and/or a more detailed Monitoring Report.

Potential Harm to the Environment / Potential Permit Violation Area of Concern Tracking No Known Risks to EnvironmentParameter Not Rated

"Click circles for more information."

Mine

Category

QTR 1

QTR 2

QTR 3

QTR 4

Facilities Monitoring

Facilities Monitoring

Eagle Mine continues to report sulfate results in the TDRSA leak sump greater than 500 mg/L (810 mg/L). This result is expected as the likely source is the aggregate used in construction of the drainage system.

Facilities Monitoring

Eagle Mine continues to report sulfate results in the TDRSA leak sump greater than 500 mg/L (849 mg/L). This result is expected as the likely source is the aggregate used in construction of the drainage system.

Facilities Monitoring

Eagle Mine continues to report sulfate results in the TDRSA leak sump greater than 500 mg/L (754 mg/L). This result is expected as the likely source is the aggregate used in construction of the drainage system.